I just bought a lovely new Dell u2413 and its been great apart from this weird glitch that only seemed to occur when playing back video. This happened in media player and also in my video editor program. It would start playing then it would slightly change color, and go a bit dimmer and more blue. Damn - got a duff screen? Changed video card to see. Nope, changed from DVI to display port - nope.I was just about to call Dell and ask them to change it but did a bit more GoogleFu and found a post where someone mentioned something similar, and apparently its a FEATURE! Yes, in all the new range of Dell Ultrasharps there is this thing in settings called Smart Video Enhance - and any time it detects motion it kicks in. And is very annoying. So I turned it off and now I am happy. So in case anyone gets puzzled by your new Dell, and has not read the manual, like..me and most everyone else, thats the issue.Other than that, great monitor - recommended.